Submission #100493

#	Time	Username	Problem	Language	Result	Execution time	Memory
100493		1Khan	Bank (IZhO14_bank)	C++14	25 / 100	9 ms	384 KiB

bank

/// 1n  the  name  of  GOD

#include <bits/stdc++.h>
using   namespace        std;

#define ko               exit(0);
#define nl               '\n'
#define ios              ios_base :: sync_with_stdio(0), cin.tie(0), cout.tie(0);
#define sz(s)            (int)s.size()
#define all(s)           s.begin(), s.end()
#define oll(s, n, c)     (s) + (c), s + (n) + c
#define pb               push_back
#define ff               first
#define ss               second
#define pii              pair<int, int>

typedef long long ll;
typedef double db;

const int N = 1e5 + 111;
const int M = 1e9 + 7;

int q, n, a[N], b[N];

void solve(int id){
     if(id > n){
          int w = 0;
          for(int i = 1; i <= q; ++i){
               if(b[i]){
                    w++;
                    return;
               }
          }
          if(!w){
               cout << "YES";
               exit(0);
          }
          return;
     }
     for(int i = 1; i <= q; ++i){
          if(b[i] >= a[id]){
               b[i] -= a[id];
               solve(id + 1);
               b[i] += a[id];
          }
     }
     solve(id + 1);
}

int can[N];
int main(){

     cin >> q >> n;
     for(int i = 1; i <= q; ++i){
          cin >> b[i];
     }
     for(int i = 1; i <= n; ++i){
          cin >> a[i];
     }
     if(max(q, n) <= 10){
          solve(1);
          cout << "NO";
          return 0;
     }
     can[0] = 1;
     for(int i = 1; i <= n; ++i){
          for(int j = 1111; j >= 0; --j){
               can[j + a[i]] = 1;
          }
     }
     for(int i = 1; i <= q; ++i){
          if(!can[b[i]]){
               cout << "NO";
               return 0;
          }
     }
     cout << "YES";
     return 0;
}

• Subtask 1: 0 / 19
• Subtask 2: 25 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29